Revert of Redirecting off-origin navigations in PWAs to CCT.

chrome/android/java/src/org/chromium/chrome/browser/webapps/WebappInterceptNavigationDelegate.java

-// Copyright 2017 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package org.chromium.chrome.browser.webapps;
-
-import android.net.Uri;
-import android.support.customtabs.CustomTabsIntent;
-
-import org.chromium.chrome.browser.tab.InterceptNavigationDelegateImpl;
-import org.chromium.chrome.browser.tab.Tab;
-import org.chromium.chrome.browser.util.UrlUtilities;
-import org.chromium.components.navigation_interception.NavigationParams;
-
-/**
- * Intercepts navigations made by the Web App and sends off-origin http(s) ones to a Custom Tab.
- */
-public class WebappInterceptNavigationDelegate extends InterceptNavigationDelegateImpl {
-    private final WebappActivity mActivity;
-
-    public WebappInterceptNavigationDelegate(WebappActivity activity, Tab tab) {
-        super(tab);
-        this.mActivity = activity;
-    }
-
-    @Override
-    public boolean shouldIgnoreNavigation(NavigationParams navigationParams) {
-        if (super.shouldIgnoreNavigation(navigationParams)) {
-            return true;
-        }
-
-        if (UrlUtilities.isValidForIntentFallbackNavigation(navigationParams.url)
-                && isUrlOutsideWebappScope(mActivity.mWebappInfo, navigationParams.url)) {
-            CustomTabsIntent.Builder intentBuilder = new CustomTabsIntent.Builder();
-            intentBuilder.setShowTitle(true);
-            if (mActivity.mWebappInfo.hasValidThemeColor()) {
-                // Need to cast as themeColor is a long to contain possible error results.
-                intentBuilder.setToolbarColor((int) mActivity.mWebappInfo.themeColor());
-            }
-            CustomTabsIntent customTabIntent = intentBuilder.build();
-            customTabIntent.intent.setPackage(mActivity.getPackageName());
-            customTabIntent.launchUrl(mActivity, Uri.parse(navigationParams.url));
-            return true;
-        }
-
-        return false;
-    }
-
-    // Note that WebApks override this with a rule based on web manifest scope.
-    protected boolean isUrlOutsideWebappScope(WebappInfo info, String url) {
-        return !UrlUtilities.sameDomainOrHost(info.uri().toString(), url, true);
-    }
-}